ch to Mm
92 unitsConvert Chain (US survey) to Megameter (ch to Mm)
1 chain (US survey) = 0.00002011684023 megameters. Convert chain (US survey) to megameters instantly, with the exact factor, the formula and a reference table of common values.
ch to Mm conversion table
| ch | Mm |
|---|---|
| 1 ch | 0.00002011684023 Mm |
| 2 ch | 0.00004023368047 Mm |
| 3 ch | 0.0000603505207 Mm |
| 5 ch | 0.0001005842012 Mm |
| 10 ch | 0.0002011684023 Mm |
| 20 ch | 0.0004023368047 Mm |
| 50 ch | 0.001005842012 Mm |
| 100 ch | 0.002011684023 Mm |
| 250 ch | 0.005029210058 Mm |
| 500 ch | 0.01005842012 Mm |
| 1000 ch | 0.02011684023 Mm |
What is a chain (US survey)?
The chain (US survey) is a US survey unit. One chain (US survey) equals 20.11684023 meters, so every conversion on this page starts from that single number. Survey units come from a slightly older definition of the foot that the United States kept for land measurement, so they are a tiny fraction larger than the modern versions.
The difference is far too small to notice in a room, but across miles of property boundary it matters, which is why surveyors and deed records keep the two apart.
In writing, the chain (US survey) is usually shortened to "ch". One chain (US survey) is 20.11684023 meters, and that ratio is what every figure on this page is built from.